Financial Modelers Simplify Spreadsheets to Reduce Errors and Succeed in 2025 with Myles Arnott

In this episode of Financial Modeler's Corner, host Paul Barnhurst welcomes Myles Arnott, co-founder of Full Stack Modeller and founder of Clarity Consultancy Services. Myles shares his 25+ year journey in Excel, his philosophy of keeping things simple, and how structured design and tools like Power Query have transformed his approach to modeling. He also opens up about taking the FMI Advanced Financial Modeler (AFM) exam and co-building a global modeling community.Myles Arnott is a CMA-qualified accountant, Excel trainer, and fractional finance director. He leads Clarity Consultancy Services and co-founded Full Stack Modeller, a platform built to provide finance professionals with a full toolkit of modern Excel and modeling skills. Myles blends operational finance experience with teaching, making complex modeling concepts accessible through real-world insights and practice.Expect to Learn:The power of simplicity in model designHow to effectively prepare for the AFM examBest practices for managing data flow in ExcelWhy Power Query is one of Excel’s most powerful toolsHow Full Stack Modeler is helping professionals level up in financeThe value of designing with clarity and reviewing with confidenceMyles’s journey from complex automation to clean, intuitive spreadsheetsHere are a few quotes from the episode:Spreadsheet risk skyrockets when models are messy and undocumented.”- Myles Arnott“If your data flows are poor, your insights will be too.”- Myles Arnott“Power Query changed everything for how we manage data in Excel.”- Myles ArnottIn this episode, Myles Arnott shares how clarity, consistency, and structure create better financial models. He emphasizes the importance of design thinking, simplifying complexity, and continuously developing your skills. Whether you're preparing for the AFM or just want to clean up your modeling, Myles’s advice will guide you toward modeling excellence.Follow Myles:LinkedIn - https://www.linkedin.com/in/mylesarnott/Website - https://www.fullstackmodeller.com/Follow Paul: Website - https://www.thefpandaguy.com   LinkedIn - https://www.linkedin.com/in/thefpandaguy  YouTube - https://www.youtube.com/@thefpaguy8376  Follow Financial Modeler's Corner  LinkedIn Page- https://www.linkedin.com/company/financial-modeler-s-corner/?viewAsMember=true  Newsletter - Subscribe on LinkedIn-https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=7079020077076905984Sign up for the Advanced Financial Modeler Accreditation Today and receive 15% off by using the special show code ‘Podcast’. Visit